Former Kings defenseman Andrej Sekera signs with Edmonton Oilers

Kings defensemanAndrej Sekera makes a pass during a game against the Ducks at Honda Center on Feb. 27. (Wally Skalij / Los Angeles Times)

The relationship between the Kings and defenseman Andrej Sekera lasted 16 games.

Sekera not only is leaving the Kings but the unrestricted free agent landed in the same division, reaching a six-year deal worth $33 million with the fast-rebuilding Edmonton Oilers. The news was first reported by TSN.

Salary cap concerns and uncertainty prevented the Kings from making a serious run at retaining the 29-year-old.

The acquisition of Sekera at the trade deadline was a costly gamble for the Kings. Kings GM Dean Lombardi gave up a first-round pick -- which will be in 2016 -- and a prospect for Sekera.

Sekera had one goal and four points before injuring his knee at Chicago on March 30, which ended his season.